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<p>报告 <a href="https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/annotation/DependsOn.html">@DependsOn</a> 注解的 <code>value</code> 形参中不正确的 Bean 引用。</p>

<p><b>示例：</b></p>
<pre><code lang="java">
  @Component
  @DependsOn("unknown")  // 报告 "无法解析 Bean 'unknown'"
  public class MyComponent {
  }
</code></pre>
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